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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Libmemcached library
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* Copyright (C) 2006-2009 Brian Aker All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*
memcached_result_st are used to internally represent the return values from
memcached. We use a structure so that long term as identifiers are added
to memcached we will be able to absorb new attributes without having
to addjust the entire API.
*/
#include <libmemcached/common.h>
static inline void _result_init(memcached_result_st *self,
memcached_st *memc)
{
self->item_flags= 0;
self->item_expiration= 0;
self->key_length= 0;
self->item_cas= 0;
self->root= memc;
self->numeric_value= UINT64_MAX;
self->count= 0;
self->item_key[0]= 0;
}
memcached_result_st *memcached_result_create(const memcached_st *memc,
memcached_result_st *ptr)
{
WATCHPOINT_ASSERT(memc);
/* Saving malloc calls :) */
if (ptr)
{
ptr->options.is_allocated= false;
}
else
{
ptr= libmemcached_xmalloc(memc, memcached_result_st);
if (not ptr)
{
return NULL;
}
ptr->options.is_allocated= true;
}
ptr->options.is_initialized= true;
_result_init(ptr, (memcached_st *)memc);
WATCHPOINT_SET(ptr->value.options.is_initialized= false);
memcached_string_create((memcached_st*)memc, &ptr->value, 0);
WATCHPOINT_ASSERT_INITIALIZED(&ptr->value);
WATCHPOINT_ASSERT(ptr->value.string == NULL);
return ptr;
}
void memcached_result_reset(memcached_result_st *ptr)
{
ptr->key_length= 0;
memcached_string_reset(&ptr->value);
ptr->item_flags= 0;
ptr->item_cas= 0;
ptr->item_expiration= 0;
ptr->numeric_value= UINT64_MAX;
}
void memcached_result_free(memcached_result_st *ptr)
{
if (ptr == NULL)
{
return;
}
memcached_string_free(&ptr->value);
ptr->numeric_value= UINT64_MAX;
if (memcached_is_allocated(ptr))
{
WATCHPOINT_ASSERT(ptr->root); // Without a root, that means that result was not properly initialized.
libmemcached_free(ptr->root, ptr);
}
else
{
ptr->count= 0;
ptr->options.is_initialized= false;
}
}
void memcached_result_reset_value(memcached_result_st *ptr)
{
memcached_string_reset(&ptr->value);
}
memcached_return_t memcached_result_set_value(memcached_result_st *ptr,
const char *value,
size_t length)
{
if (memcached_failed(memcached_string_append(&ptr->value, value, length)))
{
return memcached_set_errno(*ptr->root, errno, MEMCACHED_AT);
}
return MEMCACHED_SUCCESS;
}
const char *memcached_result_key_value(const memcached_result_st *self)
{
return self->key_length ? self->item_key : NULL;
}
size_t memcached_result_key_length(const memcached_result_st *self)
{
return self->key_length;
}
const char *memcached_result_value(const memcached_result_st *self)
{
const memcached_string_st *sptr= &self->value;
return memcached_string_value(sptr);
}
size_t memcached_result_length(const memcached_result_st *self)
{
const memcached_string_st *sptr= &self->value;
return memcached_string_length(sptr);
}
uint32_t memcached_result_flags(const memcached_result_st *self)
{
return self->item_flags;
}
uint64_t memcached_result_cas(const memcached_result_st *self)
{
return self->item_cas;
}
void memcached_result_set_flags(memcached_result_st *self, uint32_t flags)
{
self->item_flags= flags;
}
void memcached_result_set_expiration(memcached_result_st *self, time_t expiration)
{
self->item_expiration= expiration;
}
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